Sunday, made an effort to drain raw water from both engines in my 98 Mariner 350. To include the raw water strainers and any left over water in the hoses and bilge. After 4 consecutive days of below freezing temps, I figured the boat will be fine. However, I forgot about the inside plumbing!!! I have an electric dehumidifier working. I don’t think it'll keep things from freezing inside. Lesson learned, hopefully it won’t be an expensive lesson when I go to check on it.
If you can, get some of the antifreeze made for fresh water systems. It is pink in color usually. Drain the water tank first, then put about 5 gallons in the water tank and run every sink etc. until each one turns pink......
Thanks, I'm going to do that. Checked on it and found some water in the bilge. I assume something broke. Not much water so maybe it was one pipe.
A couple of years ago I tried to transport a boat in January. It was 0*F after several weeks of below freezing temp. Nothing winterized; everything frozen. One engine started with a boom. We put in about 6 spaceheaters, called the mechanic and came back in a week to try again. Only damage was one shower head. Sometimes you get lucky.
Ok, I was lucky, no breakage. I went to Home Depot and picked up the pink RV Antifreeze and poured it in. Then opened all faucets until it came out.
